Plate-glass-polishing apparatus



May 5, 1925. 1,536,847

H. S. HEICHERT- PLATE GLASS POLISHING APPARATUS INVENTOR 2 Sheets-Sheet 2 www \NW kan) n f .MU V Ww W May 5, 1925.

H. S. HEICHERT PLATE GLASS POLISHING APPARATUS Fild June s.

HERMAN PATENT OFFICE.

S. HEICHERT, F PITTSBURGH, PENNSYLVANIA, ASSIGNOR T0 PTTSBURGH PLATE GLASS COMPANY, A CORPORATION OF PENNSYLVANIA.

PLATE-GLASS-POLI-SHING APPARATUS.

Application iiled June 5,-

To all whom it may concern; v

Be it known that I, HERMAN S. HEICHERT, `a citizen of the `United States, and a resident ef Pittsburgh, in the county of Allegheny and State of Pennsylvania, have made a new and useful invention in Improvements in Plate-Glass-Polishing Apparatus, of which the following is a specification. I The vinvention relates to apparatus for polishing plate glass, and particularly to that form in which the glass to be polished is carriedv beneath a. series of polishers on carsv or other carrier apparatus. After a certain period of use, the felts of the runners become caked with the rouge or other polishing material and their efficiency is reduced. e The principal object of `the invention is to `\provide a simple, convenient arrangement `whereby the felts may be cleaned without removing the polisher blocks or discs from the machine. VCertain embodiments of the invention are illustrated in the accompanying drawings wherein:

Figure l1 is a side elevation ofthe assembled` apparatus. Fig. 2 is a vfragmentary plan view at the edge of the runner frame. Fig. 3 is a section onthe line-IIIf-III of `Fig. 2. Fig. 4 is a' view similar to that of n Fig. 3, butI showing the parts in a different "0 position. Fig. 5 'is an enlarged section on the line V--V of Fig. 4. And Figs. 6 and 7 are' plan and side elevation views respectively showing a modification.

- Referring' to thel general arrangement of parts as shown in Fig. l1a, .the reference numeral 1 designates the framework of the machine; 2 is a supporting bracket carried by the framework; 3"'s acar mounted upon the track 4 and carrying the glass to be polished; 5 is a rack carried upon the bottom of the cars and driven from the sha-ft; 6. through the gears 7 and 8; 9 is a tubular support provided at its upper and lower ends with bearings in which is journaled the runner shaftI 10; 11 is an electric motor which drives the shaft 10 through the intermediary of gearing locatedin Vthe casing 12; -13 is the runner frame vsecured to the lower end of the runner shaft -and carrying the blocks or runners- 14; 15,is a lever provided withv a hooked end as indicated ati16 and engaging trunnions 17 carried by the gear casing 12; 18 is a link pivoted to the bracket 2 and providedwith hook shaped 'ends 19 engaging l trunnions 2Q carried by the tubular Vsupport ring through.

- pin 31 andthis perforation is which time the dog 33 ofthe bearing 'ciently `4above the' tablel 3 to 1923. Serial N'o.643,500.

9; 21 is a 'rod connected tothe lever 15 for i raising and lowering the r11-nner, such rod being threaded as indicated at 22 and passingl through the bracket 23; and 24 is a handwheel threaded onto the rod whereby it may be raised and lowered.

The arrangement whereby. the blocks or runners may be cleaned willbe seen by reference t'o Figs. 2 to 5. As here shown, the blocks are provided on their lower faces' with the usual felts' 25 and have secured to their upper sides the spindles 26 free to rotate in the bearings 27. pivotally mounted from thepcriphery of the runner frame 29 by meansof the pins 30.

are held securely against rotation about the pins 30 by means of other pins 31 also passthe hearing and through the brackets 28.

The bearing .is perforated to receive the lined with a as indicated in Fig. 5 on which dog or catch 33 which are'moved to bushing 32, bushing is pivotcd the comes into play when the parts the position illustrated in Fig. 4. is desired to swing the runner to this pos-ition for cleaning purposes, the pin 31 is removed, which permits the bearing to swing outwardly about its pivot 30 until the spin'- Thebearings 27 are in brackets 28 projecting YVhen in operative e position, as indicated at Fig. 3, the bearings lVhen it dle 26 is. horizontal as indicated in Fig. 4, at l engages a-recess 34 1n the periphery of the frame 29 so' that the parts are automatically held-in the position indicated in Fig. 4, after they have been swung to this position.

Mounted upon the splash wall 35' which parallels the track 4 on which the glass carrying trucks are mounted, is a cleaning pan or receptacle 36 in which the runners to be cleaned project. In' order to swing the runner tothe position indicated in Fig. 4, it is first necessary to raise unit comprising the tubular support 9, the motor 11 and the runner frame 13 and this is accomplished by means of the lever 15 operated fromthe hand wheel 24. By this means the runner frame is lifted above the position indicated in- Fig. 3 until the top 27 comes in contactvwith the cotterl pin/.37 through the top o f the spindle 26, after `which the s carried'thereby areV lite to a'point suiperxmt the r'unlosv indle and runner 1 ner to swing out to the position indicated in i axes,

. bing the felt Fig. 4. The pan 36 is preferably slid along the top of the wall 35 until it lies beneath the runner with its outlet 38 directed down v wardly between the splash wall and the car 3. ,The felt 25 may now be ele'aned in tho usual way by applying water and by scrub, with a rough brush or other tool to loosen the rouge. When this runner is cleaned, the runnerA frame 13 4is rotated to bring the next runner into position over the pan, after which it is cleaned in the same manner, the operation being repeated until the entire series of runners carried by the frame 13 are cleaned. After each runner is cleaned, the dog 33 is released and the runner permitted to drop back to the position of Fig; 3 at which time the securing pin 3]- is'inserted. This arrangement alsa permits of the ready removal of the runner and spindle and its replacement by another runner and spindle case any particular runner requires repair.

Figs. 6 and 7 illustrate an alternative arrangement in which the dog 33 is done away with. As here shown, the runner spindle 39 carrying the runner 40 passes up through a bearing 41 carried `by the runner frame 42. This bearing is pivoted inthe fork 43 by means of a pin 44 and the bearing-is normally held against tilting movement by a second pin 45 also extending through the fork 43. When it is desiredY to clean the runner, the pin 45 is removed and the runner tilted about the pin 44 to the position indicated in dotted lines, which movement brings the upper perforation through the bearing into alignment with the perforations 46 through the fork 43. The parts are secured in this position by passing the pin 45 through the perforation in the bearing and through .the perforation 46. The operi ation involved in manipulating the parts and cleaning the .felts is the same as heretofore described. Various other arrangements might be provided for swinging the runners laterally so as to bring their faces in position for cleaning and for holding the parts in such position, the invention contemplating broadly any and all means for swinging the runners laterally to clean-` ing position after the runner frame has been raised to permit this movement.

1. ln combinationvin apparatus -for polishing plate glass, a rotatable runner frame mounted forvertical movement, means forl raising and lowering said frame, means for rotating that frame, a carrierfor the glass mounted for movement transversely of said frame a a plurality of polishing blocks or runners free to rotate about their'vertical and mounted on said frame so that they may be swung laterally away from the .ing the frame, a

rasage? 2.1n combination in apparatus for poll ishing plate glass, a rotatable frame mounted for vertical movement, means for raising and lowering 'said frame, means for rotatcarrier for the glass mountedl for movement transversely of said frame, a plurality of polishing blocks or runners free. to rotate about their vertical axes and mounted on said frame so that they may be swung laterallyl away from the center of said frame to present \their lower surfaces for cleaning-and lreleasable means for lock-4 ing the blocks in both of their positions.

3. Ineombination in apparatus for polishing plate glass, a rotatable frame mounted for vertical movement, means for raising and lowering said frame, means for rotating 'the frame, a carrier for the glass mounted for movement 'transversely of said frame, a plurality of vertical bearings pivotally mounted in said frame so that they may be a plurality of polishing "p swung laterally, blocks having spindles mounted in said bearings and re'leasablemeans for locking the bearings in vertical po'sition.

. 4.' In combination inA apparatus for polishing plate glass, a rotatable frame mounted for vertical movement, means for raising ,and lowering said frame, means for rotating the frame, a carrier for the glass mounted for movement transversely of said frame,

a plurality of vert'cal bearings pivotally mounted in said fra e so that they may be swung. laterally, a plurality of polishing blocks having spindles mounted in said bearings, releasable means for locking the bearings in vertical position, and releasable means for locking the bearings in position after they have been swung laterally.

5.- In combination in apparatus fr polishing plate glass, a rotatable frame mounted for vertical movement, means for raising and lowering said,frame, means for rotating the frame, a carrier for the glass mounted for movement transversely of said frame. a

plurality of vertical bearings pivotally mounted in said frame so that they may be swung laterally, a plurality of polishing blocks having 'spindles Amounted in said bearings, releasable means for locking the bearings in vertical position, and releasable means for locking the bearings in position Iafter they have been swung laterally, the

said frame being of such diameter .that the runners project out past the side of said carrier when the bearings are swung to their lateral positions.

'1n testimony whereof, I have hereunto subscribed' my name this 26th day of May, 1923.

HERMAN s. HEICHERT. 

